Home / 217,868-326,802-70,124

Finding the Fourth Proportional to 217,868, 326,802 and 70,124

Calculator

Solution

The fourth proportional to 217,868, 326,802 and 70,124 is: 105,186

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,868 : 326,802 = 70,124 : x
  2. Step 2: Convert to fraction form
    217,868/326,802 = 70,124/x
  3. Step 3: Cross multiply
    217,868x = 326,802 × 70,124
  4. Step 4: Simplify right side
    217,868x = 22,916,663,448
  5. Step 5: Solve for x
    x = 22,916,663,448/217,868
  6. Step 6: Final answer
    x = 105,186

Related Problems

Find fourth proportional to 108,934, 163,401 and 35,062
Half scale
Find fourth proportional to 435,736, 653,604 and 140,248
Double scale
Find fourth proportional to 217,869, 326,803.50 and 70,125
Similar ratio
Find fourth proportional to 326,802, 490,203 and 105,186
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.